Rapid clamping and positioning device for machining of anti-creeping and energy-absorbing cutter for railway vehicle

Abstract

The invention relates to a rail vehicle anti-creeping and energy-absorbing cutter machining rapid clamping and positioning device which comprises a U-shaped base, a pressing rod mounting seat and a first hydraulic cylinder are fixed to the two sides of the inner wall of the base respectively, a second pressing rod is rotatably mounted on the pressing rod mounting seat, and a second pressing plate is fixed to the end of the second pressing rod. A first pressing rod is rotatably installed at the hydraulic cylinder movable shaft end of the first hydraulic cylinder, a first pressing plate is fixed to the end of the first pressing rod, the first pressing rod and the second pressing rod are coaxially arranged, the first pressing plate is matched with the second pressing plate, an L-shaped clamping plate is slidably inserted into the second pressing plate, and an extension spring is connected between the L-shaped clamping plate and the inner wall of the second pressing plate. The other face of the L-shaped clamping plate is parallel to the end face of the second pressing plate, the first pressing rod and the second pressing rod are connected with a rotating mechanism, and the rotating mechanism is used for driving the first pressing rod and the second pressing rod to rotate synchronously. According to the tool machining rapid clamping and positioning device for preventing climbing and absorbing energy of the railway vehicle, the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of machining, and in particular to a quick clamping and positioning device for tool machining for anti-climbing and energy absorption of rail vehicles. Background Art

[0002] The rail vehicle anti-climbing energy absorption device is a key component installed at the front end of the vehicle. When the vehicle accidentally collides with other vehicles during driving, the anti-climbing device itself can absorb energy by metal cutting to reduce the kinetic energy of the vehicle, ultimately achieving the purpose of buffering collision and reducing collision losses. The planing tool is the core component of the planing anti-climbing device product.

[0003] The planing tool is made of cemented carbide material. Generally, the blank is pressed out through the powder sintering process, and then it is precisely manufactured through processes such as grinding and wire cutting. The workpiece processing surface is a semi-cylindrical surface and two planes that are tangent and parallel to it. The conventional processing method is to use wire cutting to process the processing surface in one go. Through process improvement, the two tangent parallel surfaces are processed through a plane grinding process, and wire cutting only processes the semi-cylindrical surface. However, during the processing, since multiple surfaces of the workpiece need to be processed, the workpiece needs to be removed and the clamping direction needs to be changed to ensure that the surface to be processed faces the processing direction. The process of removing and re-clamping the workpiece wastes time and reduces the processing efficiency.

[0004] Therefore, a quick clamping and positioning device for tool processing for anti-climbing and energy absorption of rail vehicles is needed to solve the above technical problems. Summary of the invention

[0005] The present invention aims at the technical problems existing in the prior art and provides a rapid clamping and positioning device for tool processing for anti-climbing and energy absorption of rail vehicles.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a quick clamping and positioning device for tool processing for anti-climbing and energy absorption of rail vehicles, comprising a base, the base is U-shaped, and a pressure rod mounting seat and a first hydraulic cylinder are fixed on both sides of the inner wall of the base, a second pressure rod is rotatably mounted on the pressure rod mounting seat, a second pressure plate is fixed on the end of the second pressure rod, the first pressure rod is rotatably mounted on the hydraulic cylinder movable shaft end of the first hydraulic cylinder, and the first pressure plate is fixed on the end of the first pressure rod, the first pressure rod and the second pressure rod are coaxially arranged, the first pressure plate is adapted to the second pressure plate, an L-shaped clamping plate is slidably inserted into the interior of the second pressure plate, a tension spring is connected between the L-shaped clamping plate and the inner wall of the second pressure plate, the other side of the L-shaped clamping plate is parallel to the end face of the second pressure plate, and a rotating mechanism is connected to the first pressure rod and the second pressure rod, and the rotating mechanism is used to drive the first pressure rod and the second pressure rod to rotate synchronously.

[0007] Preferably, in the above-mentioned rail vehicle anti-climbing energy absorption tool machining quick clamping and positioning device, the rotating mechanism comprises a motor, and the output shaft end of the motor is connected to an angle adjustment shaft.

[0008] Preferably, the above-mentioned rail vehicle anti-creep energy absorption tool processing quick clamping and positioning device, wherein the outer sleeve of the angle adjustment shaft is provided with a first driving wheel and a second driving wheel, the second driving wheel is fixedly connected to the angle adjustment shaft, and the first driving wheel is radially fixedly connected to the angle adjustment shaft and axially slidably connected.

[0009] Preferably, the above-mentioned rail vehicle anti-creep energy absorption tool processing quick clamping and positioning device, wherein the second driven wheel is fixed to the outside of the second pressure rod, the first driven wheel is fixed to the outside of the first pressure rod, a first transmission belt is connected between the first driven wheel and the first driving wheel, and a second transmission belt is connected between the second driven wheel and the second driving wheel.

[0010] Preferably, in the above-mentioned rail vehicle anti-climbing and energy absorption tool processing quick clamping and positioning device, a linkage bracket is connected between the movable shaft of the hydraulic cylinder and the first driving wheel, the linkage bracket is fixedly connected to the movable shaft of the hydraulic cylinder, and the linkage bracket is rotatably connected to the first driving wheel.

[0011] Preferably, in the above-mentioned rail vehicle anti-climbing energy absorption tool processing quick clamping and positioning device, the angle adjustment shaft passes through the interior of the linkage bracket and the two do not contact each other.

[0012] Preferably, the above-mentioned rail vehicle anti-climbing and energy absorption tool processing quick clamping and positioning device, wherein a hydraulic cylinder base is installed on the inner bottom of the base, a second hydraulic cylinder is fixed on the upper side of the hydraulic cylinder base, and a top plate is installed on the top of the movable shaft of the second hydraulic cylinder, and the top plate is located on the lower side of the L-shaped clamping plate.

[0013] Preferably, in the above-mentioned rail vehicle anti-climbing energy absorption tool processing quick clamping and positioning device, the movable axis of the second hydraulic cylinder faces the vertical direction.

[0014] The beneficial effects of the present invention are as follows: the present invention firstly clamps the tool by the L-shaped clamping plate, and then clamps the tool by the first hydraulic cylinder to avoid the risk of the hand being crushed by the hydraulic cylinder during the clamping process; by setting a rotating mechanism, there is no need to take out the tool and re-clamp it after processing on one side of the tool, and the angle adjustment shaft is directly driven to rotate by the rotation of the motor, and the first driven wheel and the second driven wheel are driven to rotate by the first driving wheel, the second driving wheel, the first transmission belt, and the second transmission belt, thereby driving the first pressure rod, the second pressure rod, the first pressure plate, and the second pressure plate to rotate, so that the tool is rotated to another surface to be processed, thereby improving the processing efficiency. Before the application of the new process technology, the outer contour size of the workpiece processed by wire cutting equipment was about 110mm, and the processing time was about 110min. After the application of the new process technology, the wire cutting processing size was 63mm, the processing time was 63min, the grinding processing time was 5min, and the total processing time was 68min, which saved a total of 42min of processing time, reduced the labor cost of product manufacturing, the proportion of equipment loss, and processing consumables. The wire cutting processing efficiency is lower than that of surface grinding. By increasing the size of the grinding process and reducing the wire cutting processing size, the processing time is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the tool clamped by the pressing plate of the present invention; Figure 2 This is a schematic diagram of the structure when the tool has not yet been placed in the L-shaped clamping plate; Figure 3 for Figure 2 Schematic diagram of the structure after the middle tool is placed in the L-shaped clamping plate; Figure 4 is a schematic diagram of the internal structure of the second pressing plate; Figure 5 A cross-sectional view of an L-shaped clamping plate.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Base, 2. Motor, 3. Angle adjustment shaft, 4. First hydraulic cylinder, 5. Hydraulic cylinder movable shaft, 6. Linkage bracket, 7. First driving wheel, 8. First driven wheel, 9. First transmission belt, 10. Shaft bracket, 11. Second driving wheel, 12. Second transmission belt, 13. Second driven wheel, 14. Pressure rod mounting seat, 15. Second pressure rod, 16. Hydraulic cylinder base, 17. Second hydraulic cylinder, 18. First pressure plate, 19. Second pressure plate, 20. L-shaped clamping plate, 21. Tension spring, 22. First pressure rod. DETAILED DESCRIPTION

[0017] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a quick clamping and positioning device for tool processing for anti-climbing and energy absorption of rail vehicles includes a base 1, which is U-shaped, and a pressure rod mounting seat 14 and a first hydraulic cylinder 4 are fixed on both sides of the inner wall of the base 1. A second pressure rod 15 is rotatably mounted on the pressure rod mounting seat 14, and a second pressure plate 19 is fixed to the end of the second pressure rod 15. An L-shaped clamping plate 20 is slidably inserted into the interior of the second pressure plate 19, and a tension spring 21 is connected between the L-shaped clamping plate 20 and the inner wall of the second pressure plate 19, and the other side of the L-shaped clamping plate 20 is parallel to the end face of the second pressure plate 19. A first pressure rod 22 is rotatably mounted on the end of the hydraulic cylinder movable shaft 5 of the first hydraulic cylinder 4, and a first pressure plate 18 is fixed to the end of the first pressure rod 22. The first pressure rod 22 is coaxially arranged with the second pressure rod 15, and the first pressure plate 18 is adapted to the second pressure plate 19. When clamping the tool, one hand first pulls the L-shaped clamping plate 20 outward, and the other hand puts the tool between the L-shaped clamping plate 20 and the second pressure plate 19. After releasing the L-shaped clamping plate 20, the tension spring 21 pulls the L-shaped clamping plate 20 inward, thereby clamping the tool between the L-shaped clamping plate 20 and the second pressure plate 19, and then the hand can leave the tool. Then, the first hydraulic cylinder 4 pushes the first pressure rod 22 and the first pressure plate 18 toward the side of the second pressure plate 19, thereby firmly clamping the tool. Clamping the tool with the L-shaped clamping plate 20 first can avoid the risk of the hand being crushed by the hydraulic cylinder during the clamping process.

[0019] The first pressure rod 22 and the second pressure rod 15 are connected with a rotating mechanism, and the rotating mechanism is used to drive the first pressure rod 22 and the second pressure rod 15 to rotate synchronously. The rotating mechanism includes a motor 2, and the output shaft end of the motor 2 is connected with an angle adjustment shaft 3, and the two ends of the angle adjustment shaft 3 are installed with a shaft bracket 10. The outer sleeve of the angle adjustment shaft 3 is provided with a first driving wheel 7 and a second driving wheel 11, and the second driving wheel 11 is fixedly connected to the angle adjustment shaft 3, and the first driving wheel 7 is radially fixedly connected and axially slidably connected to the angle adjustment shaft 3, that is, when the angle adjustment shaft 3 rotates, the first driving wheel 7 can be driven to rotate, and the first driving wheel 7 can slide along the angle adjustment shaft 3. The second driven wheel 13 is fixed to the outside of the second pressure rod 15, and the second driven wheel 13 is connected with the second driving wheel 11. When the angle adjustment shaft 3 rotates, the second driving wheel 11 can be driven to rotate, and the second driven wheel 13 can be driven to rotate through the second transmission belt 12, thereby driving the second pressure rod 15 and the second pressure plate 19 to rotate.

[0020] The first driven wheel 8 is fixed to the outside of the first pressure rod 22, and the first driven wheel 8 is connected to the first driving wheel 7 by a first transmission belt 9. When the angle adjustment shaft 3 rotates, the first driving wheel 7 can be driven to rotate, and the first driven wheel 8 and the first pressure rod 22 can be driven to rotate by the first transmission belt 9. Further, in order to prevent the first driven wheel 8 from being misaligned with the first driving wheel 7 when the first hydraulic cylinder 4 pushes the first pressure rod 22 and the first pressure plate 18 to move toward the second pressure plate 19, a linkage bracket 6 is connected between the hydraulic cylinder movable shaft 5 and the first driving wheel 7, the linkage bracket 6 is fixedly connected to the hydraulic cylinder movable shaft 5, and the linkage bracket 6 is rotationally connected to the first driving wheel 7. Specifically, a thrust bearing is installed between the linkage bracket 6 and the first driving wheel 7. The angle adjustment shaft 3 passes through the interior of the linkage bracket 6 and the two do not contact each other. When the first hydraulic cylinder 4 pushes the first pressure rod 22 and the first pressure plate 18 to move, the linkage bracket 6 will push the first driving wheel 7 and the first driven wheel 8 to move synchronously, so as not to affect the power transmission between the two.

[0021] Since the processing is performed from the upper side of the tool to be processed, in order to ensure the clamping stability of the tool to be processed, a hydraulic cylinder base 16 is installed on the inner bottom of the base 1, and a second hydraulic cylinder 17 is fixed on the upper side of the hydraulic cylinder base 16. A top plate is installed on the top of the movable shaft of the second hydraulic cylinder 17, and the top plate is located on the lower side of the L-shaped clamping plate 20. The movable shaft of the second hydraulic cylinder 17 faces the vertical direction. When the tool is placed between the L-shaped clamping plate 20 and the second pressure plate 19, the second hydraulic cylinder 17 lifts the movable shaft in advance, and the top plate installed on the top of the movable shaft can lift the tool to prevent the tool from being pushed during grinding. After processing on one side of the tool is completed, the movable shaft of the second hydraulic cylinder 17 retracts, and the motor 2 rotates a certain angle, driving the angle adjustment shaft 3 to rotate, and the first driven wheel 8 and the second driven wheel 13 are driven to rotate through the first driving wheel 7, the second driving wheel 11, the first transmission belt 9, and the second transmission belt 12, thereby driving the first pressure rod 22, the second pressure rod 15, the first pressure plate 18, and the second pressure plate 19 to rotate, so that the tool is rotated to another surface to be processed, and then the movable shaft of the second hydraulic cylinder 17 is lifted up again to lift the bottom of the tool.

[0022] Working principle: When clamping the tool, the second hydraulic cylinder 17 lifts the movable shaft in advance, and the top plate installed on the top of the movable shaft can lift the tool. One hand first pulls the L-shaped clamping plate 20 outward, and the other hand puts the tool between the L-shaped clamping plate 20 and the second pressure plate 19, and the bottom of the tool falls on the top plate installed on the top of the movable shaft. After releasing the L-shaped clamping plate 20, the tension spring 21 pulls the L-shaped clamping plate 20 inward, thereby clamping the tool between the L-shaped clamping plate 20 and the second pressure plate 19, and then the hand can leave the tool. Then, the first hydraulic cylinder 4 pushes the first pressure rod 22 and the first pressure plate 18 to the side of the second pressure plate 19, thereby firmly clamping the tool. Clamping the tool with the L-shaped clamping plate 20 first can avoid the risk of the hand being crushed by the hydraulic cylinder during the clamping process. When one side of the tool is processed, the movable shaft of the second hydraulic cylinder 17 retracts, and the motor 2 rotates a certain angle, driving the angle adjustment shaft 3 to rotate, and the first driven wheel 8 and the second driven wheel 13 are driven to rotate through the first driving wheel 7, the second driving wheel 11, the first transmission belt 9, and the second transmission belt 12, and then the first pressure rod 22, the second pressure rod 15, the first pressure plate 18, and the second pressure plate 19 are driven to rotate, so that the tool rotates to another surface to be processed, and the processing of the three surfaces of the tool is completed in sequence.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation of the present invention. In addition, "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A rapid clamping and positioning device for tool processing for anti-climbing and energy absorption of rail vehicles, characterized in that: The invention comprises a base (1), wherein the base (1) is U-shaped, and a pressure rod mounting seat (14) and a first hydraulic cylinder (4) are respectively fixed on both sides of the inner wall of the base (1), a second pressure rod (15) is rotatably mounted on the pressure rod mounting seat (14), a second pressure plate (19) is fixed to the end of the second pressure rod (15), a first pressure rod (22) is rotatably mounted on the end of the hydraulic cylinder movable shaft (5) of the first hydraulic cylinder (4), a first pressure plate (18) is fixed to the end of the first pressure rod (22), and the first pressure rod (22) and the second pressure rod (15) are connected to each other. The first pressure plate (18) and the second pressure plate (19) are coaxially arranged, and are adapted to each other; an L-shaped clamping plate (20) is slidably inserted into the interior of the second pressure plate (19); a tension spring (21) is connected between the inner wall of the L-shaped clamping plate (20) and the second pressure plate (19); the other surface of the L-shaped clamping plate (20) is parallel to the end surface of the second pressure plate (19); a rotating mechanism is connected to the first pressure rod (22) and the second pressure rod (15); the rotating mechanism is used to drive the first pressure rod (22) and the second pressure rod (15) to rotate synchronously.

2. The rapid clamping and positioning device for tool processing for anti-climbing and energy absorption of rail vehicles according to claim 1 is characterized in that: The rotating mechanism comprises a motor (2), and an output shaft end of the motor (2) is connected to an angle adjustment rotating shaft (3).

3. The rapid clamping and positioning device for tool processing for anti-climbing and energy absorption of rail vehicles according to claim 2 is characterized in that: The angle adjustment shaft (3) is externally sleeved with a first driving wheel (7) and a second driving wheel (11); the second driving wheel (11) is fixedly connected to the angle adjustment shaft (3); and the first driving wheel (7) is radially fixedly connected to the angle adjustment shaft (3) and axially slidably connected to the angle adjustment shaft (3).

4. The rapid clamping and positioning device for tool processing for anti-climbing and energy absorption of rail vehicles according to claim 3 is characterized in that: A second driven wheel (13) is fixed to the outside of the second pressure rod (15), a first driven wheel (8) is fixed to the outside of the first pressure rod (22), a first transmission belt (9) is connected between the first driven wheel (8) and the first driving wheel (7), and a second transmission belt (12) is connected between the second driven wheel (13) and the second driving wheel (11).

5. The rapid clamping and positioning device for tool processing for anti-climbing and energy absorption of rail vehicles according to claim 4 is characterized in that: A linkage bracket (6) is connected between the hydraulic cylinder movable shaft (5) and the first driving wheel (7); the linkage bracket (6) is fixedly connected to the hydraulic cylinder movable shaft (5); and the linkage bracket (6) is rotatably connected to the first driving wheel (7).

6. The rapid clamping and positioning device for tool processing for anti-climbing and energy absorption of rail vehicles according to claim 5 is characterized in that: The angle adjustment shaft (3) passes through the interior of the linkage bracket (6) and the two do not contact each other.

7. The rapid clamping and positioning device for tool processing for anti-climbing and energy absorption of rail vehicles according to claim 1 is characterized in that: A hydraulic cylinder base (16) is installed at the inner bottom of the base (1), a second hydraulic cylinder (17) is fixed on the upper side of the hydraulic cylinder base (16), a top plate is installed on the top of the movable shaft of the second hydraulic cylinder (17), and the top plate is located on the lower side of the L-shaped clamping plate (20).

8. The rapid clamping and positioning device for tool processing for anti-climbing and energy absorption of rail vehicles according to claim 7 is characterized in that: The movable axis of the second hydraulic cylinder (17) faces in the vertical direction.

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